Good day, i am new to this forum, find your discussions interresting. I have 2 axpert inverters. On the one screen the centre top shows "HS" and on the other one , none. What is the difference and what does it mean?

Edited May 29, 20168 yr by George

Just want to add....these two inverters are installed in two different installations and are not on the same installation.

HS or H5 means that the unit thinks it is a master inverter in a two (or more) inverter installation.

Set program 28 to SIG for single.

Thanks Chris. Will it make any difference as to how the inverter works if it stays in that mode? Althou it works as a single unit?

I don't think so but is easy enough to change.

With the LCD screen active

Hold in  the Enter key for 3 seconds

Use the up key to scroll from program 31 to 28 

Use the Enter Key to select program 28

Use up and down keys to select  appropriate setting

Push Enter key to save setting 

push Esc to return to display menus.

 

My unit will not allow me to select anything but SIG so I think you unit was connected in parallel at one time perhaps in the warehouse or by the installer in his workshop as a test.

Thanks Chris, appreciate your help

On 29/05/2016 at 5:14 AM, Chris Hobson said:

HS or H5 means that the unit thinks it is a master inverter in a two (or more) inverter installation.

It's actually "HS" in the firmware. "S" and "5" have the same 7 segment representation, as do oh and zero, "Z" and "2", but you can tell from the binary "string" in the firmware what it was intended to be.

I've sometimes wondered what HS stands for. Perhaps it was meant to me "MS" for MaSter, but the representation for M is poor - basically the bottom three segments of the "H" . So perhaps the programmer thought the representation for "H" was actually better at suggesting "M" than the representation for "M" itself. (Even though native English speakers tend to immediately see a capital H.) So that's my best guess - this is supposed to mean MaSter.

Thanks for the explanation

My invert is showing that H5 mode. Could it be the reason why its not charging on AC?

On 2016/05/30 at 5:34 AM, Chris Hobson said:

My unit will not allow me to select anything but SIG

I should have mentioned: you need to have the inverter's rocker switch OFF to change setting 28; it's the only setting like that. If the switch is on, you can't change it from what it is set to right now. Have a charging source available (either AC-in or PV) so the inverter doesn't actually power down and go black as you are trying to change the setting.

 

4 hours ago, Flav said:

My invert is showing that H5 mode. Could it be the reason why its not charging on AC?

My instinct says no, logically it should make no difference, but that setting is checked quite a lot, so I guess it's possible. Certainly, try and change that setting to see if it fixes the problem.

Thanks. After resetting a few times the problem was resolved. 

My inverter keeps saying batteey voltage low error code 04 but my batteries will be highly charged on button 4 or 5

Pylon tech

16 hours ago, Paul zhou said:

My inverter keeps saying battery voltage low error code 04

Please see FAQ 1 here.

On 2016/05/29 at 9:14 PM, Chris Hobson said:

HS or H5 means that the unit thinks it is a master inverter in a two (or more) inverter installation.

Set program 28 to SIG for single.

Kindly advise why Program 28 does not change to SIG on my Inverter?

14 minutes ago, Danny Thesan said:

Kindly advise why Program 28 does not change to SIG on my Inverter?

You are required to put the inverter in standby to do so. 

To do so, power the machine up with battery, and then grid. Then switch the machine to OFF position via switch or pushbutton. 

You will now be able to change setting 28.

I have a 5kva mercer and its showing H5 but showing no ac or battery on display what could the problem be anyone

19 hours ago, Abdullah jo said:

I have a 5kva mercer and its showing H5

As to my experience these inverters are factory delivered with that default setting HS even for single unit installation. It has some effect but I don't remember what. You have to set it to SIG (28) when the unit is turned off but connected to the battery.

Definitely sort out that problem first. In theory, it should not matter much, but in practice, it seems to.

I would think that it should not be causing AC-in or battery not to be displayed, but who knows.

See FAQ #3 for how to change that setting. See also FAQ #4 just below it.

Edited October 6, 2024Oct 6 by Coulomb